Ethan Furman wrote:
some of the return values (Logical, Date, DateTime, and probably Character) will have their own dedicated singletons (Null, NullDate, NullDateTime, NullChar -- which will all compare equal to None)

That doesn't seem like a good idea to me. It's common practice
to use 'is' rather than '==' when comparing things to None.

Why do you want to use special null values for these types?

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Greg
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